LOCTITE® HY 4090
Features and Benefits
LOCTITE HY 4090 is an off-white to light yellow, high viscosity, 2-part hybrid, universal structural bonder with high humidity and vibration resistance.
LOCTITE® HY 4090 is a high viscosity, off-white to light yellow gel. It opens completely new application areas in structural bonding – for the very first time combining instant adhesive properties with those for epoxies to give more striking benefits. Fixture time of 90 - 180 seconds and suitable for gaps up to 5 mm. Resistant to vibration, shock loads and impacts with the ability to bond dissimilar substrates. Best application results are achieved with LOCTITE® 50 ml Adhesive Mixing Nozzle (item 1826921), LOCTITE® 400 ml Adhesive Mixing Nozzle (item 1573135), LOCTITE® 96001 (item 267452) or LOCTITE® 983439 (item 218311).
- Vibration, shock loads and impact resistance
- Temperature resistance up to 150 °C
- Gap filling up to 5mm
- High moisture resistance
- UV resistant allowing outdoor applications
- Viscoelastic & Finite Strain FEA data cards available
Documents and Downloads
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Technical Information
| Application method | Dispense gun |
| Applications | Bonding dissimilar materials, Bonding plastic, Bonding rubber, Construction, Direct bonding, Edge bonding, Exterior repairs, Interior repairs, Structural bonding |
| Cure type | Room temperature (ambient) cure, Two component mix |
| FEA (finite element analysis) | Finite strain, Viscoelastic |
| Fixture time | <180.0 sec. |
| Gap fill | 2.0 mm |
| Mix ratio, by weight | 1 : 1 |
| Number of components | 2 part |
| Physical form | Liquid |
| Recommended for use with | Composite, Composite: advanced composites, Dry surface, Elastomer: highly filled elastomer, Epoxy, Fiberboard, Gel coat, Laminate, Metal, Non-gel coat, Painted surface, Phenolic, Plastic, Rubber, Thermoplastic, Thermoset, Urethane: cast urethane, Vinyl, Wood |
| Shear strength, Steel (grit blasted) | 17.0 N/mm² (2420.0 psi ) |
| Mixed | |
| Color, Mixed | Off white |
| Key characteristics, Mixed | Cure speed: fast cure, Gap filling, Humidity resistant, Impact resistant, Moisture resistant, UV resistant, Vibration resistant, Viscosity: high viscosity |
| Operating temperature, Mixed | -40.0 - 300.0 °C (-40.0 - 284.0 °F ) |
| Resin | |
| Color, Resin | Clear |
| Viscosity, cone & plate, Resin @ 25.0 °C | 4000.0 - 7000.0 mPa·s (cP) |
| Hardener | |
| Color, Hardener | Off white |
| Viscosity, cone & plate, Hardener @ 25.0 °C | 25000.0 - 40000.0 mPa·s (cP) |
LOCTITE® HY 4090
LOCTITE HY 4090 is an off-white to light yellow, high viscosity, 2-part hybrid, universal structural bonder with high humidity and vibration resistance.